Wandering Rocks: Comments by Joyce

"To see Joyce at work on the Wandering Rocks was to see an engineer at work with compass and slide-rule, a surveyor with theodolite and measuring chain or, more Ulyssean perhaps, a ship's officer taking the sun, reading the log and calculating current drift and leeway. . . . Joyce wrote the Wandering Rocks with a map of Dublin before him on which were traced in red ink the paths of the Earl of Dudley and Father Conmee. He calculated to a minute the time necessary for his characters to cover a given distance of the city."

(Frank Budgen, James Joyce and the Making of "Ulysses," pp. 121, 122-23 / p. 123, 124-25)